108 lines
2.6 KiB
Go
108 lines
2.6 KiB
Go
package vk
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import (
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"encoding/json"
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"errors"
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"log"
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"net/http"
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"strings"
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"github.com/flygrounder/go-mtg-vk/caching"
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"github.com/flygrounder/go-mtg-vk/cardsinfo"
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"github.com/gin-gonic/gin"
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)
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const Cardslimit = 8
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func min(a, b int) int {
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if a < b {
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return a
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}
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return b
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}
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func HandleMessage(c *gin.Context) {
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var req MessageRequest
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_ = c.BindJSON(&req)
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if req.Secret != SecretKey {
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return
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}
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switch req.Type {
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case "confirmation":
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handleConfirmation(c, &req)
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case "message_new":
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go handleSearch(&req)
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c.String(http.StatusOK, "ok")
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}
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}
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func handleSearch(req *MessageRequest) {
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defer func() {
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if r := recover(); r != nil {
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log.Printf("[error] Search panicked. Exception info: %s", r)
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}
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}()
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cardName, err := getCardNameByCommand(req.Object.Body)
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if err != nil {
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Message(req.Object.UserId, "Некорректная команда")
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log.Printf("[info] Not correct command. Message: %s user input: %s", err.Error(), req.Object.Body)
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} else if cardName == "" {
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Message(req.Object.UserId, "Карта не найдена")
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log.Printf("[info] Could not find card. User input: %s", req.Object.Body)
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} else {
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prices, err := GetPrices(cardName)
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if err != nil {
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Message(req.Object.UserId, "Цены временно недоступны, попробуйте позже")
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log.Printf("[error] Could not find SCG prices. Message: %s card name: %s", err.Error(), cardName)
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return
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}
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elements := min(Cardslimit, len(prices))
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prices = prices[:elements]
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priceInfo := cardsinfo.FormatCardPrices(cardName, prices)
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Message(req.Object.UserId, priceInfo)
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}
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}
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func GetPrices(cardName string) ([]cardsinfo.CardPrice, error) {
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client := caching.GetClient()
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val, err := client.Get(cardName)
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var prices []cardsinfo.CardPrice
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if err != nil {
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prices, err = cardsinfo.GetSCGPrices(cardName)
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if err != nil {
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return nil, err
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}
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serialized, err := json.Marshal(prices)
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if err != nil {
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return nil, err
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}
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client.Set(cardName, string(serialized))
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return prices, nil
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}
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_ = json.Unmarshal([]byte(val), &prices)
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return prices, nil
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}
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func getCardNameByCommand(command string) (string, error) {
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var name string
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switch {
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case strings.HasPrefix(command, "!s"):
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split := strings.Split(command, " ")
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if len(split) < 3 {
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return "", errors.New("wrong command")
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}
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set := split[1]
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number := split[2]
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name = cardsinfo.GetNameByCardId(set, number)
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default:
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name = cardsinfo.GetOriginalName(command)
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}
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return name, nil
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}
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func handleConfirmation(c *gin.Context, req *MessageRequest) {
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if (req.Type == "confirmation") && (req.GroupId == GroupId) {
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c.String(http.StatusOK, ConfirmationString)
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}
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}
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